In ancient China, the Ganzhi era was based on how many years as a cycle

The Ganzhi (gānzhī) chronology method has been used in the Chinese calendar since ancient times.

Ganzhi is a general term for the heavenly stem and the earthly branch. A, B, C, D, E, Ji, G, Xin, Ren, De and other ten symbols are called Tiangan, Zi, Chou, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu, Hai and other twelve symbols are called the earthly branch. The sequence of the stem branch is matched exactly sixty times a week, and the cycle is repeated, and the cycle is recorded, which is commonly known as the "stem branch table".

01.Jiazi.

02.B ugly.

03.Bingyin.

04.Ding Mao.

05.Wuchen.

06.Jimi.

07.Geng Wu.

08.Xinwei.

09.Renshen.

10.Decan.

11.Jiaxu.

12.Otohai.

13.Cyl.

14.Ding Chou.

15.Wu Yin.

16.Ji Mao.

17.Gengchen.

18.Xin Si.

19.Ren Wu.

20.Deceased.

21.Jiashen.

22.Ethyl unitary.

23.Proto.

24.Ding Hai.

25.Wuzi.

26.Ugly.

27.Geng Yin.

28.Xin Mao.

29.Renchen.

30.癸巳.

31.Jiawu.

32.B not.

33.C.

34.Ding You.

35.Wuxu.

36.Jihai.

37.Gengzi.

38.Xin Chou.

39.Ren Yin.

40.癸卯.

41.Jiachen.

42.Otomi.

43.Bingwu.

44.Ding Wei.

45.Wushen.

46.Hexacy.

47.Gengxu.

48.Xinhai.

49.Renzi.

50.Ugly.

51.Jiayin.

52.Yi Mao.

53.Bingchen.

54.Ding Si.

55.Wu Wu.

56.Not yet.

57.Gengshen.

58.Xinyou.

59.壬戌.

60.癸海.

60 years. According to the "Lü's Spring and Autumn Period, Review and Review, Do Not Bow": Jiazi, 60 groups of Ganzhi wheels in the year or year of the Ganzhi year, called a Jiazi, a total of 60 years.

2019 is the Year of the Pig, and 2019 is the Year of the Pig. In China, it had its own calendar as early as 2000 BC. For a long period of time, China used the "Ganzhi Era Method", that is, the combination of the 10 heavenly stems and the 12 earthly branches, with a cycle of 60 years.

The sexagenary branches make up the ancient chronological calendar. The ten stems and the twelve branches are matched in turn to form sixty basic units, and the two cooperate with each other in a fixed order to form the Ganzhi Era Law.

The Stems and Earthly Branches, referred to as the "Stems", originated from the observation of celestial phenomena in ancient China. Ten Heavenly Stems: A, B, C, D, E, H, G, XIN, NON, and Dec; Twelve Earthly Branches:

Zi, Chou, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu, Hai. The ten heavenly stems and the twelve earthly branches are matched in turn to form sixty basic units, and the two cooperate with each other in a fixed order to form the Ganzhi Era Law.

The Ganzhi chronology has been used since ancient times in the Chinese calendar. Ganzhi is a general term for the heavenly stem and the earthly branch. The sequence of the stem branch is matched exactly sixty times a week, and the cycle is repeated, and the cycle is recorded, which is commonly known as the "stem branch table". The Ganzhi year is changed from the beginning of spring to the beginning of spring every year.

Calculation method: According to the first year of the Common Era, it is the year of Xinyou, Xin 8 unitary 10, the dry cycle is 10, and the cycle of 10 branches is 12.

The order of the heavenly stems is 1 10 from the first to the decyl, and the order of the earthly branches is 1 12 in the order of the sub to the hai.

Year stem = n-3 (n>3) or n-3 + 10 (n 3), n = the remainder of the year number divided by 10 = the single digit of the year number.

Year branch = n-3 (n>3) or n-3 + 12 (n 3), n = the remainder of the year number divided by 12.

Example: Find the dry branches of 1164 A.D. and 2011 A.D.

4 3 1 A in 1164, 1 3 10 8 Xin in 2011;

0 3 12 9 Shen in 1164 and 7 3 4 Mao in 2011;

Therefore, the dry branch in 1164 A.D. is Jiashen, and the dry branch in 2011 is Xinmao.

The Ganzhi Chronicle is a kind of chronological method in ancient China. That is, the 12 earthly branches of A, B, C, D, E, G, XIN, NON, and 癸 are combined in order to record the twelve earthly branches of A, B, C, C, D, E, Ji, Geng, Xin, Ren, and Gui, and Zi, Chou, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu, and Hai. Such as Jiazi, Yichou, etc., after 60 years and then returned to Jiazi.

The cycle goes on and on. China's traditional dating method still follows the Ganzhi chronology.

1 Jiazi 2 Yichou 3 Bingyin 4 Ding Mao 5Wuchen 6 has been 7 Gengwu 8 Xinwei 9 Renshen 10 癸酉.

11.Jiaxu 12 Yihai 13 Bingzi 14 Ding Chou 15 Wu Yin 16 Ji Mao 17 Gengchen 18 Xin Si 19 Ren Wu 20 Guiwei.

21 Jiashen 22 Yiyou 23 Bingxu 24 Dinghai 25 Wuzi 26 Jichou 27 Gengyin 28 Xinmao 29 Renchen 30 癸巳.

31 Jiawu 32 Yiwei 33 Bingshen 34 Ding You 35 Wuxu 36 Jihai 37 Gengzi 38 Xin Chou 39 Ren Yin 40 癸卯.

41 Jiachen 42 Yisi 43 Bingwu 44 Ding Wei 45 Wushen 46 Ji You 47 Gengxu 48 Xinhai 49 Renzi 50 Guichou.

51 Jiayin 52 Yimao 53 Bingchen 54 Ding Si 55 Wuwu 56 Ji Wei 57 Gengshen 58 Xin You 59 Ren Xu 60 Guihai.

These sixty pairs of stem branches, the heavenly stem meridian six cycles, and the earthly branch meridian five cycles are exactly sixty, which is called "sixty trunk branches". In this order, it is represented by a pair of dry branches every year, and it is a cycle of sixty years, which is called "sixty flower nails". For example, 1989 is the year of the year, and 1990 is the year of Gengwu; From the year of Jiazi in 1984 to 2044, it is the year of Jiazi again.

This method of dating is called the "Ganzhi Chronology" and has been used to this day.

Jiazi chronology: also known as the Ganzhi chronology.

How does the sexagenary chronology calculate the year, month and day? The easiest way to teach you.

The Chinese lunar calendar adopts the heavenly stems and earthly branches as the method of calculating the year, month, day and hour, that is, each heavenly stem and earthly branch are matched in a certain order without repeating, and are used as the code name of the year, month, day and time. Put a character in the "heavenly stem" in the front, and a character in the "earthly branch" in the back, so as to form a pair of stem branches. If the "heavenly stem" starts with the character "A" and the "earthly branch" begins with the character "zi", you can get:

Categories: Education, Science, >> Learning Aid.

Problem description: I heard it's 60 years, but I don't understand.

Analysis: The stem branch is a combination of the heavenly stem and the earthly branch. There are ten heavenly stems, namely, A, B, C, D, E, G, G, XIN, NON, and DEC; There are twelve earthly branches, namely Zi, Chou, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu, and Hai.

The heavenly stem and the earth are scattered and separated from the "Jiazi", and are matched one by one in order, and when each is used to the last, it continues to match from the first one, forming sixty stem branches, also known as "Sixty Flower Jiazi". Why 60 stems? It's easy to learn from the number of ants.

According to the composition conditions of the stem branch, its cycle must be the least common multiple of the number of heavenly stems and the number of earthly stems. And 60 is exactly the least common multiple of 10 and 12.

If we make "Jiazi" number 1 and "Yichou" number 2, we can get a dry branch.

and serial numbers are listed below

1.Jiazi 2B Chou 3Bingyin 4Ding Mao 5Wu Chen 6Ji Si 7庚午 8Xinwei.

9.Nonshen 1011Jiaxu 12Otohai 13propylene 14Ding Chou 15Wu Yin 16Ji Mao.

17.Gengchen 18Xin Si 19Renwu 2021Jiashen 22Ethyl 23propylene 24Ding Hai.

25.Wuzi 2627Geng Yin 28Xin Mao 29Renchen 30癸巳 31Jiawu 32B not.

33.C-Shen 34Ding You 35Pentecostal 36Jihai 37Gengzi 38Xin Chou 39Ren Yin 40癸卯.

41.Jiachen 42Otomi 43Bingwu 44Ding Wei 45Wushen 46Hexagram 47庚戌 48Xinhai.

49.Renzi 5051Jiayin 52B Mao 53Bingchen 54Ding Si 55Wu Wu 56Not yet.

57.Gengshen 58Xinyou 59壬戌 60癸海.

1. Ten days of dryness:

甲 [jiǎ], B [yǐ], C [bǐng], 丁 [dīng], 戊 [wù], 己 [jǐ], 庚 [gēng], 辛 [xīn], 壬 [rén], 癸 [guǐ].

2. Twelve earthly branches:

子 [zǐ], ugly [chǒu], 寅 [yín], 卯 [mǎo], 辰 [chén], 巳 [sì], 午 [wǔ], 未 [wèi], shen [shēn], 酉 [yǒu], 戌 [xū], hai [hài].

A, B, C, D, E, G, XIN, REN, DE, ZI, CHOU, YIN, MAO, CHEN, SI, WU, WEI, SHEN, YOU, XU, HAI "QI YANWU IS THE SIMPLIFIED HEAVENLY AND TERRESTRIAL BRANCHES.

The 12 earthly branches correspond to the 12 zodiac signs:

Zi-Rat, Chou-Niu, Yin-Tiger, Mao-Rabbit, Chen-Dragon, Si-Snake, Wu-Horse, Wei-Sheep, Shen-Monkey, You-Chicken, Xu-Dog, Hai-Pig.

Calculations and extrapolations.

Tian's empty side stem = (Gregorian calendar year) 10, the remainder obtained.

Earthly branch = (Gregorian year) 12, the remainder obtained.

Examples of specific algorithms:

1. The perpetual calendar knows that 1995 is the year of Yihai.

Calculation: First use the mantissa 5 of 1995 to check the table to know that the heavenly stem is B, and use the year (1995) divided by 12 to find the remainder of 12 to check the table to know that the earthly branch is Hai, so 1995 is the year of Yihai.

2. Another example is that in 2013, the perpetual calendar was checked as the year of the Lunar New Year.

Calculation: First use the mantissa of 2013 to find out that the heavenly stem is decay, and then divide the year (2013) by 12 and the remainder is 9, and 9 is the si. Then 2013 is the year of the Lunar New Year.

Meaning of stem branch

The husband is like the dry of the wood, and the strong is the yang; The branches of the plum branch are weak, and they are yin. In the past, the Pangu clan knew the way of heaven and earth, and reached the transformation of yin and yang into three talents. After the first monarch divides heaven and earth, there is heaven and then earth, and life is born by gasification, so the emperor's surname is thirteen people, following the Pangu clan to rule, it is said that the heavenly spirit is indifferent, inaction and vulgar self-transformation, the name of the beginning of the system of cadres, in order to determine the age of the place.

Its ten cadres are called Yanfeng, Zhanmeng, Rouzhao, Qiangyuan, Zhuyong, Tuwei, Shangzhang, Chongguang, Xuanhuang, and Zhaoyang.

The twelve branches are said: Sleepy, Chifenruo, Setig, Shan Yan, Zhixu, Dahuangluo, Dunqi, Xieqia, Shutan, Zuo Oak O, Eunuch Mao, and Dayuan Xian. In ancient times, the ancients used the heavenly and terrestrial branches as carriers.

The above content reference: Encyclopedia - Sexagenary Branch.